HISTORICAL GEOLOGY TEST # 2 - FALL, 2009 1. Plant photosynthesis can probably best explain the presence of ? in the atmosphere. A.nitrogen B.methane C.water vapor D.oxygen E.all of the above 2. Oceans have suspension feeders; terrestrial environments do not. This is most likely because of A.salinity B.temperature C.dissolved gases D.light E.viscosity 3. Sedimentologists have determined that traces of organisms can be used to determine ancient water depth, termed paleobathymetry. The Skolithos assemblage (burrows) is found in intertidal environments; the Cruziana and Nereites assemblages (invertebrate trails) are found further offshore. These assemblages represent A.molds B.carbonized films C.ichnofossils D.steinkerns E.coprolites 4. New species arise from preexisting ones as a result of ? acting on ?. A.natural selection, inherited variations B.natural selection, the struggle for existence C.inherited variations, natural selection D.inherited variations, struggle for existence 5. Divergent boundaries would produce which of the following rock types? A.rhyolite B.eclogite C.basalt D.andesite E.peridotite 6. Adaptive Radiation pertains to the ? of species. A.origin B.extinction 7. Plesiosaurs are Triassic- to Cretaceous-age aquatic reptiles (these are what the Loch Ness monster is supposed to be). From studies of bone shape and position of muscle attachments, it has been determined that they moved their flippers in the same manner that birds move their wings during flight. The discovery that plesiosaurs swam by means of subaqueous flight was determined primarily by studies of A.embryology B.paleoecology C.morphology D.evolution E.paleozoogeography 8. Temperate biomes typically have ? species diversity than tropical biomes. A.less B.more C.there is no difference in species diversity between temperate and tropical biomes 9. Within the Upper Jurassic of Germany, fish and ichthyosaur (dolphin-like reptile) fossils are preserved by which the outline of the body may be discerned as a dark film. This type of fossil preservation is termed A.replacement B.carbonization C.permineralization D.recrystallization E.molds and casts 10. Oceanic Plates A.are termed sialic B.are made of basaltic material C.are produced along subduction zones D.have a low specific gravity E.all of the above are true concerning oceanic plates 11. The aphotic zone is ? the photic zone. A.above B.below C.it depends upon the depth of water 12. Turritella is a common fossil snail found in the Lower Cretaceous of central Texas. The most common fossil preservation found in these fossils consists of an impression of the inner cavity of the snail. These fossils represent A.molds B.carbonized films C.ichnofossils D.steinkerns E.coprolites

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13. In Petrified Forest National Park, we have determined that different Triassic-age fossil vertebrates are found in fluvial versus lacustrine environments. This analysis involves primarily studies of A.palynology B.paleobotany C.morphology D.invertebrate paleontology

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